DE1549346A1 - Arithmetic unit for calculating machines - Google Patents

Description

DIPL-INQ. DIETER JANDER DR.-INQ. MANFRED BÖNINQ

PATENT LAWYERS 1 Γ / Γ4 1 / Γ

ι ο η d ο A b

1 BERLIN 33 (DAHLEM)

HOTTENWEG 15

Phone: 76 13 OJ

Telegrams: Consideration Berlin

738/12479 EN March 28, 1967

Patent application

of the company

SPEERY RANI) C ORPORA TIOU 129O Avenue of the Americas New fork 19, Ji.Y. ,UNITED STATES.

"Arithmetic unit for calculating machines"

The invention relates to a ten-key cup machine, in which a pegged carriage is incremented as data is received from the keyboard will. Data reading sectors are provided for reading the data and for transferring it to a counter. One that stores the transfers Device is attached to the same shaft with the data reading sectors. It is a camshaft rotatable by drive means provided, the cam elements of which operate the counter periodically and in a straight path between the data reading sectors

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and move the device storing the transmissions back and forth » The reading of the data and the transfer of the transfers are carried out by Actuating means causes the one-piece made of comb-shaped There are leaf springs and pivoted from the main shaft will. The transfers are read from the counter and are inserted into the transfers by comb-shaped, one-piece leaf springs storing device entered.

The invention disclosed in the present application can be used with advantage with the keyboard and the data input device may be used in a still-pending Application No. s 108028 IXc / ^ m ¹ with the title. ■ data input device for mechanical calculators, "filed on 27 · January 1967, is described »

The invention relates generally to a ten-key mechanical calculating machine * Such calculating machines are known per se «With the calculating machines currently available, you can the following arithmetic operations are performed: additions alone, additions and subtractions, additions, subtractions and multiplications and finally additions, subtractions, multiplications and divisions, some of these calculating machines are equipped with further options

All of these machines are inherently complicated, and when the number of operations to be performed automatically increases the complexity of the machine and thus the complexity required to perform these operations technical effort

The invention provides a calculating machine with which basically Additions and subtractions can be carried out, but with the use of a repetition key

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DIPL.-INQ. DIETER JANDER DR.-INO- MANFRED BONINC 1, £ * ₍ ( Q Ο _χ j D

PATENT LAWYERS · -. - _, J

PATENT LAWYERS

Multiplications can be performed. Calculating machines with the same capacity, which are known per se, were already extensive Simplifications achieved. In the American patent No. 2 667 3Ο4, e.g., a calculating machine is described, which has essentially the same capacity but uses hundreds of additional components have to. The machine is like the older calculating machines according to the invention for a motor drive and for printing of the results set up. Even a superficial comparison of the drawings in the two cases with one another shows the extent of the simplification achieved.

One of the features of the invention can be seen in the fact that actually all components due to the special design can be made from plastics by molding or otherwise. The only exceptions to this are just a few few fastening clips, coil springs and the electrical components. There are very few complex links used with the result that the Reehenmachine according to the invention Not only is it less prone to failure, it is also much easier to overlook and to maintain if this is ever necessary should be. It is also easy to see that the very substantial Reducing the number of components enables a significant reduction in manufacturing costs.

The invention provides an arithmetic logic unit with the following components, a first device for inputting and short-term Storage of data, a second device for reading the temporarily stored data, a counter, a storage device for the tens transmission, a device actuated by a camshaft that controls the counter between the data reading

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DIPL..INQ. DIETER JANDER DR.-INQ. MANFRED BDNINC PATENT LAWYERS

• Direction and storage device for the tens transmission reciprocated according to a predetermined program, and a cam-actuated, comb-like designed leaf spring, which the data reading device and operating the memory means for the tens transmission at certain times during a sequence of operations. There are further leaf springs designed like a comb, which record the passage of zeros in the counter and these Information on the storage device for tens transmission forward onto. A printing unit is provided which is triggered by a secondary cam element and individual print hammers which are acted upon by a leaf spring designed like a comb in the pressure direction. The printing unit is also with provide locking means to suppress the unimportant envelopes, which act on the individual print hammers, while a locking device cooperates with the data input device and prevents the data reader from operating before the most significant number entered.

The invention will now be described in detail. In the accompanying drawings the

Fig. 1 is a plan view of the entire calculating machine, from the lid has been removed from the kitchen unit,

Fig. 2 is a vertical section through the calculating machine according to which Fig. 1 seen from the right side,

Fig. 3 is a vertical section through the front ^r J? Eil of the computing machine with the cover removed, the pin frame, the locking device and the carriage back leading .Nockeneinrichtung is seen

Fig. 4 is a horizontal section through the arithmetic device, wherein Details of the tens transfer device

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DIPL..INO. DIETER JANDER DR.-INQ. MANFRED BÖNINQ

PATENT LAWYERS

15 Λ 9 3 4 6

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are shown.

Pig. 5 is a partially sectional front view showing the details of the counter and its slide actuating device shows as well as the cam device for determining the result and for printing out the characters,

Pig.6 is a partially sectioned front view, the the main camshaft, the print hammers and their springs as well as the actuator for the 'arithmetic segments shows

Fig. 7, 8, 9 each a representation of the counter and its slide,

Pig.10,11,12,13 each a representation of the counter slide and Tens transmission springs,

Pig.14,15,16,17 ge an illustration of the actuating springs for the tens transmission pawl and the actuating springs for actuating the print hammers, which peders are one-piece are made

Pig.18,19,20 each a representation of the structure of the actuating device for the arithmetic sectors,

Pig, 21 a sectional drawing showing the arithmetic and the printout Shows components only for one decimal column when the counter is reset to zero,

Pig.22 shows the arrangement according to Pig.21, but according to entering data to be subtracted,

Pig. 23 a representation of the arrangement according to Pigures 21 and 22, the positions of the various components when carrying out a tens carry during an addition shows and the

Pig. 24 a timetable from which the outlines of the various Cam elements can be derived.

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DIPL.-INO. DIETER JANDER DR.-INQ. MANFRED BONINQ

PATENTANWÄLTE 1 ζ / Cl 0 /

ι ν »-4 O D H

general description

Although the invention relates in particular to a mechanical arithmetic and logic unit for adding and subtracting, it is intended to be complete For the sake of better understanding of the invention, the main components of the calculating machine shown in FIGS. 1 and 2 described.

A mechanical arithmetic unit of the present embodiment consists mainly of four groups of devices. The first of these groups may consist of a data entry section with a keyboard and a device that can enter the Keypad saves keyed numbers for a short time. The second group has means for reading the keys typed into the keyboard Numbers and for transferring these numbers to a counter and for effecting the desired arithmetic operations. A third group of devices can be a printing unit operated by the arithmetic device for printing out the in the keyboard and the results obtained after performing arithmetic operations. Finally, devices must be provided for operating the calculating machine in order to carry out the various arithmetic operations will. These devices can consist of a camshaft driven by a motor with the associated program cam elements exist.

Figures 1 and 2 show these different groups of Devices as well as the housing and the various mounting frames of the calculating machine, which are jointly designated by 22. The housing can, together with the necessary holes and bearings, for the passage of the various links and for

ORIGINAL INSPECTED

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Bearings of the various shafts are required from one plastic are produced »The keyboard of the calculating machine is shown in the lower part of Fig.l. This keyboard is the same as that a conventional ten-key cup machine 10 and has the keys labeled 25 for the numbers 0 to 9 and one Actuation button 26 and a repeat button 4-3 * As seen is, according to the invention, a single operating key is sufficient to perform additions, subtractions and results in the form of total and To get intermediate results ».

The data entry device

The details of the data entry device are the subject of a pending patent application by the same inventor entitled "Mechanical Data Entry Device Calculating machines "No. S 108 028, filed January 27, 1967 · The description, therefore, can be limited to only those details necessary to fully understand the present invention are.

The number keys 25 are connected to a holder 26 via a number of push cables which are in flexible sheaths 23 are slidably mounted »When a number key is pressed, the relevant push cable is pushed forward in its casing, wherein the lower end of the push cable displaces a respective number pin 16 stored in a pin frame 20. How best can be seen from Figures 2 and 3, the pin frame 20 is with equipped with eleven columns of number pins. With the help of additional Links, after pressing one of the number keys 25, the lowest number pin corresponding to the number 9 (FIG. 2) is set at the same time. The adjustment of this pen allows a gradual

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DIPL.-INQ. DIETER JANDER DR.-INQ. MANFRED BDNINO PATENT LAWYERS

Movement of the pen frame slide from one decimal column to the next column until all numbers have been entered, or until all columns of numbers are set. Further details of this data input device can be found in the aforementioned patent application to see

During one initiated by operating the actuation button 26 Working sequence, the set pens are read, and after this reading, the pen frame slide is in the starting position returned by a device which is described in detail in the aforementioned patent application and essentially consists of a cam element 39 attached to the main camshaft 33 as shown in Figures 1, 3 and 6, and that acts on levers 40 and 41 and the pen frame slide on its -uager rail η against the force of a Spring 21 moves. During the return movement of the pen frame slide all set pins are returned to their original positions by a Uockenflache, not shown, which provided on the inside of the pen frame slide 20 and with the appropriate curvature is designed. The pen frame slide 20 can also be done by hand with the aid of a lever 24 protruding through the housing above the number keys (Fig. 1 and 2) reset if an incorrect number has been entered and if this is noticed by the operator.

The arithmetic device

On a shaft 13 are a number of arithmetic sectors 1 freely and independently rotatable. As can best be seen from Figures 2, 21, 22 and 23, consist the sectors from a middle part with one protruding to the left

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DIPL.-INO. DIETER JANDER DR.-INQ. MANFRED BONINQ

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Nose (Pig.2) and from a protruding upwards and to the right Support member If, which has a drooping arcuate at the outer end Part Ib carries the one on the inner edge with the teeth Ib and on the The outer edge is provided with the teeth Ie. With the present Embodiment of the invention twelve of these arithmetic sectors are provided, of which eleven corresponding to the number of Columns in the pen frame 20 are used for arithmetic. Depending on the relevant needs can be more or less sectors accordingly the number of columns in the pen frame 20 can be provided. The additional one furthest to the right after Pig Sector is used to operate a character printing device. All sectors consist of the same design.

Each sector has a pin manufactured in one piece with it Ic, which protrudes from one side and cooperates with an actuator to be described. These arithmetic sectors are suitably made as one piece.

The shaft 13 is arranged so that the Easenteile of arithmetic sectors 1 are located close to the pin frame 20. The pen frame will gradually move to the left after Pig. 1 or 3 moves, more and more arithmetic sectors are aligned on a column of pens, one of which is in addition to the Stepping pin has been adjusted. From Pig. 2 it can be seen that the individual arithmetic sectors 1 move counterclockwise can turn until the nose part la of each sector hits a set pin in the pin frame (Pig. 22). If not all columns in the pen frame are used, i.e. the one entered The number is smaller than the full capacity of the machine, so a locking device shown in Pig. 3 prevents

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that the ones to the left of the first entered number Sectors 1 rotate counterclockwise. This locking device is on the lower bearing rail for the pin frame slide attached and moves with the carriage as it gradually advances to the left. In the rightmost one In position, a nook 45 (FIG. 3) acts on a follower part 44a, which forms part of the locking device 44, and swivels the locking device 44 on its mounting rail in a so-called open position. In this position, the individual arithmetic sectors rotate clockwise so that the results can be read. As soon as one or several numbers have been entered in the pen frame and it has moved one or more places to the left, the follower member 44a releases from the nook 45, so that the locking device 44 is under the action of a not shown Spring can close. In the closed position, the locking device 44 protrudes into the machine so far that it with the noses la of all arithmetic sectors 1 located to the left of the first column in which a pen has been set is engaged and a counterclockwise rotation of these arithmetic sectors prevented.

The counter

In the present embodiment, the counter eleven gears 4, which are shown in FIGS. 2, 4, 5, 7, 8, 9, 22 and 23. Each gear of the counter is at twenty Provided teeth, and the individual gears of the counter are mounted side by side on a shaft 4b freely rotatable, which in turn is mounted in bearing members 71 which are part of a

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Form counter slide. As can be seen from FIGS. 5 and 9, diametrically opposed teeth 4a are "designed to be wider, that is to say they have" wider end faces than the other teeth. Within the counter, the teeth 4a correspond to the number - 0 -, whereby the wider part protruding beyond the normal thickness of the gearwheels is used to carry the tens to the next digit.

The counter consisting of the gears mounted on the shaft 4b is attached to a slide 70, as is best from Figures 4, 5, 7 »8 and 9 can be seen. This carriage is composed of two straight side rails 70b, from which the bearing arms 71 hang down close to one edge. The shaft 4b is supported in these bearing arms. The counter slide is arranged in the framework of the calculating machine so that the Side rails 70b are received by two guides 72, the are provided on both sides of the machine frame. The counter slide is supported in this way so that it can slide in a straight line and can therefore, as can be seen from Figures 21, 22 and 23, be pushed back and forth by a crank arm 19 attached to a shaft 19b, the free end of which into one on the counter slide provided slot 70a engages.

There is a spring link on the upper part of the counter slide 6a attached, which can be made in one piece and which, according to FIGS. 8 and 12, has a number of spring tongues which are arranged on the counter body so that the - ^ ederzungen protrude into the spaces between the gears of the counter. These spring tongues therefore come into engagement with the wide teeth 4a of the counter wheels 4, reading the passage of positive ones or negative transfers and transfer this information to

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another "device.

Save the transfers

.A number of each other are freely rotatable on a shaft 13 the same transfer memory segments which are arranged between the various arithmetic sectors 1. The above-, Tragsspeicherseglaente have a toothed part 8a, one with an incised portion 8b and a slotted portion 8c which is provided in the middle with a deeper incision 8d is. A plurality of ratchet teeth 7b which can snap into the notches 8d extend downward from the eder links 7. These spring members can be manufactured in one piece, as shown in FIGS. 14, 15 and 16. Find the spring links 7 to press the ratchet teeth 7b into the incisions 8d of the individual transmission segments. The springs 7a form part of the entire spring arrangement 7f, which in relation to the machine frame is attached so that the springs 7 are normally the transfer segments 8 hold on to the point of use.

As can be seen from Figures 10, 11, 13, 21, 22 and 23, the transfer reading springs 6 are at the free ends with the provided upwardly protruding parts 6b. These parts 6b lie under the ends of the springs 7. A carry is made from the counter read, then a spring 6 corresponding to this transfer is given as a tooth 4a passes through, and thus a corresponding spring raised, with the ratchet tooth 7b lifted out of the incision 8d will. The transfer segments released in this way can now move under the action of the incisions 8b engaging springs 9 move freely.

The springs 9 also consist of a one-piece

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and a comb-like spring link with individual spring tongues, each tongue of which cooperates with a carry segment. The -teder 9 is attached to a shaft IO, that of yet to be described Means is rotated back and forth according to the program.

From Figures 2, 21, 22 and 23 it can be seen that the Counter gears 4 can either mesh with the inner gear part Ib of the arithmetic segments If or with the tooth parts 8a of the transfer segments 8. This toothed part 8a of the transfer segments is laterally offset by a column column, as shown in FIGS. 1 and 4. The purpose of the offset is to ensure that a positive or negative reading is obtained (Borrow) carry over from which one decimal place in the register is transferred to the next higher decimal place.

The printing unit

A number of racks 2 for printing are provided on one side with teeth 2b ' which mesh with the outer teeth Ie of the architectural sectors If. These racks have the number types 0 to 9, as shown in Figures 2, 21, 22 and 23 at 2a. Such a printing rack is provided for each arithmetic sector and, as shown in FIG. 5, a rack is also provided for printing the special characters "addition", "subtraction", "total result" and "intermediate result". All racks are mounted vertically movable, their teeth constantly meshing with the outer teeth Ie of the individual arithmetic sectors.

As shown in Figs. 2, 21, 22 and 23, a number of print hammers 3 supported in the bearing members yo

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provided that are horizontally movable back and forth. This print hammer have two ends, one end of which is close to the racks, while the other end of one Leaf spring 7e is applied. These leaf springs form part of the spring arrangement 7f, which is in one piece in the form of a comb can be produced as shown in FIGS. 14, 15 and 17. When the print hammer is released, the springs collide 7e the print hammers against the print racks. The pressure racks sini made of a flexible material, so that when a pressure hammer hits the pressure rack in question, this is pressed against an ink ribbon which comes into contact with a paper tape 52, which is fed from a paper roll 51 from a paper feeding device 50 is fed. A plate 53 supports the paper tape at the printing station.

Each print hammer 3 is designed with a downwardly protruding shoulder 3a which cooperates with a cam element 17, which is attached to a camshaft 17b, which is driven from the main camshaft 33 via a plurality of gears 17c is, as shown in Fig.6. The cam element 17 has a cutout 17a which is cut away sharply so that when rotating the cam element 17 in the clockwise direction Approach 3a is released quickly and the springs 7b the print hammers 3 can jerk to the right, as can be seen from FIGS. 2 and 22. This leads to every work sequence of the machine Cam element 17 from one revolution, whereby from the profile of the cutout 17a can be seen that the print hammers 3 after a Pressure stroke can be withdrawn from the same cam element. A triggering device 18 is assigned to each print hammer to suppress the printing of zeros beyond the most significant Numbers is used, however, printing all other zeros on the

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allows lower digits. On a shaft 18c is a Number of levers 18 freely rotatable. These levers are made in one piece with the spring parts 18d which are attached to the print hammer bearing 3b in contact. At that remote from the spring parts 18d At the end, the levers 18 are provided with the locking parts 18d which engage in the shoulders 3c provided on the Druckhammerη 3 can. The cam sequence parts 18e of the lever 18 are applied of the cam surface Id at the arithmetic segments 1. The cam followers 18e support one pin from the next adjacent one on the right Lever 18 off, see e.g. Fig.l.

Every time a pressure rack comes out of rest position according to Figures 1 and 21 in a printing position, e.g. is moved according to Fig.22, the lever 18 is moved upwards, wherein the locking part 18b out of engagement with the shoulder 3c of the print hammers 3 is moved out against the action of the springs 18d. Since each lever 18 with the one on its right side is engaged, the most significant number to be printed causes all levers located on the right are raised, while the left-hand levers remain unaffected due to the engagement pins 18a. It is therefore possible to suppress all zeros to the left of the most significant number, since the levers 18 for the worthless numbers press the relevant print hammers Lock until the pressure racks are lifted at at least one digit.

The actuation and result determination devices of the calculating machine

The arithmetic sectors are composed of levers 15 operated with iedern 14 and returned to the starting position.

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The springs 14 are like most of the other spring members manufactured in one piece and in the shape of a comb, reference being made to FIGS. 18 and 19. The one piece of feathers 14 are riveted at 15a to the links 15, which can be pivoted back and forth by a shaft. The ends of links 15 and 14 protrude into the space between the individual arithmetic sectors 1 and act with the pegs provided on them Ic together. If the lever members 15 are pivoted back and forth, thus, the arithmetic sectors 1 are shifted over variable distances in accordance with the pens set in the pen frame 20. Since the springs 14 are provided, the lugs la about variable Stretch are moved down, but are returned by the members 15 in the starting position in which the Cheeses 1 a rest against the spring arrangement 7 f, as shown in FIGS. 2 and 21.

The fingers 5 shown in FIGS. 2, 5, 21, 22 and 23 are made in one piece and attached to an axle (not shown) and can be moved into and out of the spaces between the counter wheels, as shown in FIG can be seen, and cooperate with the wide teeth 4a on the counter gears 4. If the fingers 5 are in mesh with the wide teeth, as shown in FIGS engages empty pen frame. The fingers 5 are disengaged from the counter during the addition and subtraction by a cam element 80 , as can best be seen from FIG.

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DIPL.-iNQ. DIETER JANDER DR.-INQ. MANFRED BONtNQ

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This cam element serves a dual purpose and is at the top with a lower left-hand slide 80b and provided with an upper slide 8Od leading to the right. As can be seen from FIG. 5, the cam element 80 are pushed back and forth and is urged to the left by a helical spring 81. If the cam element 80 is in the 5 right position shown, the slide 80b acts on the fingers 5, so that these the counter for determining of the overall result. -If the cam element 80 is in the left position shown with broken lines, so the upper slide 8Od interacts with the fingers 5, these being disengaged from the counter, so that additions and subtractions can be performed.

The lower cam surface of the cam element 80 is provided with steps which cooperate with a pin 85a (FIG. 2), which is attached to the rack 85 for printing characters. If the cam element 8 is in the position shown in FIG right position, the rack 85 can reach the most extended position at which the symbol for the intermediate result is printed. The cam element 80 can assume one of four positions, in each of which a different character is printed.

As shown in Fig.l with broken lines, a lever 60 is connected to the actuating button 26, which can be moved back and forth in its longitudinal direction. The end of the lever 60 remote from the actuation button is provided with a cam surface which cooperates with a slot 80c on the cam element 80 (FIG. 5). The actuation button has the shape of a rocker arm, and if this in one direction

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is pivoted (. addition result), the lever 60 becomes The front part of the machine is pulled so that the corner part of the lever seeks to move out of the slot 80c. Will If the operating button is pivoted in the other direction (subtraction of the intermediate result), the lever 60 is moved backwards thereby moving the removed cam surface into slot 80c. Here, the cam element 80 is against the force the -k'eder 81 moved one step to the right.

60

The lever ^ can also be effected by the actuation button Carry out a longitudinal movement under the action of a pin part 20a, which hangs from the pin frame 20 (Pig. 2). Is the marriage machine empty, i.e. the pen frame slide is in the position furthest to the right, the pin 20a rests against the lever 60 and moves it towards it to the right. If data is entered into the pen frame carriage and the carriage advances to the left, the pin 20a is not located more on the lever 60 so that it can move to the left over a distance corresponding to two steps 80a on the cam element 80. Due to the action of the spring 81 on the cam element 80, the lever 60 is also urged to the left, as can be seen from Fig.l ·. From the foregoing it can be seen that as As a result of the two working positions of the actuating button 26 and as a result of the position of the pin frame slide 20, the cam element 80 can assume one of four positions, an intermediate result, an overall result, a subtraction and correspond to an addition.

The lever 60 not only determines the setting of the cam element 80, but also the position of a rocker arm 61, as shown in Fig.l. One end of the rocker arm 61 acts

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as a follow-up member on the foot element 12. The cam element 12 has four tracks, and there the rocker arm 61 along its bearing shaft can be shifted to the right or to the left by the lever 60, the rocker arm 61 arrives with a corresponding guide track engaged. The lead track 12a (FIG. 6j corresponds to the determination of an intermediate result, while the lead track 12b corresponds to the determination the overall result as well as the implementation of subtractions is equivalent to. Although the ^ -ede is encompassed by four lead tracks the lead track 12b actually the tracks for the overall result and subtraction, which are equal to each other. The lead track 12c is the most complicated and is intended for the ..dition.

The end of the remote from the cam elements 12 Rocker arm 61 cooperates with a bracket 19c which is attached to a shaft 19b that rotates to and fro (Pig. 1 and 5). As already described, the shaft 19b is provided with a crank arm which moves the counter slide back and forth. From the The foregoing shows that the scheme of movements made by the counter between the internal teeth Ib of the arithmetic Sectors 1 and the carry segments 8a are granted from the Program and the outline of the cam elements 12 is determined. the Cam elements 12 are attached to the main camshaft 33 and perform one full revolution with each work sequence of the machine.

The cam elements 11 are also located on the camshaft 33 attached. With these, the outlines are in the opposite sides incised, as in Fig. 6 with broken lines shown. The inside outline 11a works with one in the pig. 19 illustrated pin 15c together, the spring and Lever arrangement 15 »14 is pivoted back and forth with the result

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■ that data is read from the pen frame and stored in the counter and entered into the print racks, or that data is read from the counter and entered into the print racks will.

A pole member 62 cooperates with the outer contour of the cam element 11, which rotates the shaft 10 back and forth, as can be seen from FIGS. 1, 2, 21, 22 and 25. Wave 10 carries the I ^! Edern 9, which are used to move those segments of the carry storage device that have been released by the springs 7.

A further arrangement can also be provided on the camshaft 33 ^ ockenelemente and levers are provided, which a ratchet device actuated to advance the paper tape after each working sequence of the machine.

Way of working

(l) Entering numbers in the counter

At the beginning, the numbers are entered into the keyboard and in the relevant columns of the pen frame slide 20 pens are set, and the pen frame slide is gradually advanced to the left (Fig. 3). ' ^ after entering the last number is aie button 26 in the direction of "addition" pressed.

As previously described, movement of the lever 60 to the leftmost position is permitted, and the Swing arm 61 is adjusted to the cam guide track 12c (Fig. 6), while the other end of the swing arm 61 still cooperates with the bracket 19c. When the actuation button is depressed

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ste 26 an electrical circuit leading to the motor m is closed, and furthermore, about an “arrangement of levers, as described in the above-mentioned, pending patent application”, a clutch which is attached to the main camshaft 33 and executes one revolution is engaged, so that the camshaft 33 performs one revolution.

The outline of the Uockenleitspur 12c is designed according to the timing diagram according to Pig. 24 so that at the beginning of the counter slide 70 is moved out of engagement with the inner teeth Ib on the arithmetic sectors 1 by the bracket 19c, the shaft 19b and the crank arm 19. Due to the outline 80d of the cam element 80, the total result fingers 5 are disengaged from the counter 4. Before the counter wheels 4 are completely detached from the teeth Ib, the gears 4 come into engagement with the teeth 8a on the transmission segments 8, which are currently locked by the springs 7 and the ratchet teeth 7b. In this way, unintentional rotations of the counter wheels and thus the introduction of errors are avoided without a separate locking rail being required.

Following the outline of the cam surface 11a, the pin 15c at the beginning of the levers 15 and the springs 14 a movement in Clockwise, as can be seen from Figures 2 and 21, and these elements act on the arithmetic sectors in an anti-clockwise direction a. Under the action of the springs 14, the arithmetic sectors move until they are set to one Poke pin.

Due to the movement of the arithmetic sectors 1 in Counterclockwise, the corresponding pressure racks 2 are moved up to a position that of the nose parts la of the segments 1 corresponds to the number just read. During this time the cam element 17 rotates and in the appropriate manner

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Time of the work sequence according to the time sequence diagram (Fig. 24) become the print hammers that support the 'lifted print racks and correspond to those of the lower orders, caused by the springs 7e to push against the pressure racks, the in numbers entered on the keypad can be printed out.

The time of the return movement of the arithmetic sectors 1 is also determined by the cam guide track 11a; however will before this return movement of the counter slide from the cam guide track 12c returned to a position via the swing arm 61 and the bracket 19c in which the gears of the counter are also included the inner teeth Ib on the arithmetic sectors 1 engage again. At the return movement of the arithmetic Sector 1 the numbers are entered in the counter wheels, which are rotated clockwise by the number of teeth, which corresponds to the numbers entered in each case.

(2) addition

It is now assumed that a number corresponds to that Number that is already stored in the counter is to be added. As already described, this number to be added is entered in the Keyboard keyed in and the operation state 26 is depressed in the adding direction. The same are now running Operations as before. It is now also assumed that that transfers are made from one digit to the next higher digit. For example, it was initially in the counter Enter the number 75, and if the number 37 is to be added to this, the number 37 is printed out on the reading stroke. At your first entering data were in the first two decimal places the counter gears clockwise by 5 or 7 teeth turned. With the return of the lowest decimal place

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DIPL.-INO- DIETER JANDER DR.-INQ. MANFRED BONINC /

PATENT LAWYERS * | ζ /, 9 ^ A R

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the corresponding arithmetic sector was rotated again of the relevant counter gear by 7 teeth. During this rotation, the tooth 4a moves on the gear of the lowest order under the ^ 'eder 6 and lifts this spring, which is above the Approach 6b lifts the ratchet tooth 7b on the spring 7 out of the cutout 8d on the transfer segment of the lowest order.

In the same way, the counter gear of the next higher digit was turned clockwise by 3 teeth and also releases the corresponding ratchet tooth 7b, so that the carry segment of the next higher order is also released will.

At this time, the shaft 10 will conform to the cam outline 11 rotated counterclockwise, with the released ^ transfer segments are rotated clockwise up to the limit of the trajectory clockwise, the rotation by one Tooth corresponds to (Pig. 23)

When the numbers read from the arithmetic sectors 1 have been entered in the gears 4 of the counter, the counter slide is moved out of engagement with the arithmetic sectors 1 again ^{due to the outline of the T ockenleitspur 12c and is moved back into the transfer segments 8a.} According to the program determined by the cam element 11, the springs 9 are now pivoted clockwise by the shaft IC, the transfer segments 8 being rotated counterclockwise. These can rotate until the ratchet teeth 7b fall into the cutouts 8d again. During this movement, the two carries stored in the first two carry segments are entered in the relevant gear wheels of the counter of the next higher order. The initial

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DIPL.-INQ. DIETER JANDER DR.-INO- MANFRED BÖNINQ

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The result of adding the number 37 to the number 75 would be one • Register 02 in the register. When adding the is transferred to the second and third gear of the counter Carry over entered so that the number 112 is now stored in the counter »

(3) ■ subtraction

To perform a subtraction, the data is first keyed into the keyboard as with the addition. This "process has the same effect, of course, and the relevant pins are set in the pen frame slide while the slide is advanced to the left by as many columns as the number entered has decimal places.

As in the case of the addition, the part 20a hanging down from the pen frame slide 20 does not rest on the lever 60, so that the latter can take its left position according to Fig.l. With the depression of the operation button 26 in the subtraction direction, the lever 60 is pushed backward, and the cam part at the rear end enters the cutout 80c on the cam element 80, as shown in FIG is offset against the application of the spring 81 to the right. As already described, the i-cam element 80 can each have one take from four positions. In the case of an addition, the IN-cam element 80 assumes the position furthest to the left, which is shown in Fig.5. For a subtraction, the cam element 80 is moved one position to the right from this position offset.

In this position, the rocker arm 61, which is still resting on the bracket 19c, moves onto the Noekenleitspur 12b on the left side set according to Fig. 6.

As with the addition, when the actuation

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button 26 the engine is switched on and sets the main camshaft 33 once in rotation / Since now the profile 80b of the cam element 80 is effective, the total result finger 5 is off the counter 4 disengaged. Due to the outline of the guide track 12b of the cam element 12, the counter 4 remains during a first Part of the work sequence with the arithmetic segments Ib im Intervention, as best seen in the Pig.24 time sequence diagram is seen. From this it can be seen that the various gears of the counter are rotated counterclockwise or with others Words opposite to the sense in which they are rotated when added. Since the pressure racks 2 with the external teeth le remain constantly in engagement, and there with respect to the If no changes are made to the print release cam 17, the data entered are printed out as in the case of the addition (FIG. 22). The cam element 80 is now set so that the second of the various stages 80a acts on the projection 85a of the printing rack 85 that prints the characters, the rack 85 prints the sign for subtraction.

During this part of the work sequence, all negative carry over (borrowing), which when passing a tooth 4a to the Gears of the counter are effected past the zero position, transferred to the carry memory segments 8 in the same way. For this purpose, the cam element 11 has been programmed so that during this first part of the work sequence Shaft 10 is pivoted clockwise, the transfer storage segments 8 are applied in the counterclockwise direction. Those segments which, when passing through a transfer tooth 4a are released around a tooth in an anti-clockwise direction turned.

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During the return movement of the arithmetic sectors 1 is due to the. Outline of the cam guide track 12b of the counter slide 70 displaced so that the gears 4 out of the sectors Ib disengaged and into the segments 8a of the transfer storage device be indented. It is pointed out at this point that the same program on corner element 11 that initially started the Saving of carryovers during the addition now made it possible to carry over negative ones stored in the segments 8 transferred (borrowing) back into the counter. The shaft now rotates counterclockwise and acts on the Segzente 8 clockwise until the ratchet teeth 7b on the transfer springs 7 fall into the cutouts 8d. If this rotation takes place in a clockwise direction, the next higher of the gear will be Order in the counter subtracts one bins.

As an example of the way in which a subtraction works, assume that the number 132 is stored in the counter, and that the number J37 should be subtracted from this number. At the start the counter gear of the lowest digit is rotated clockwise by two teeth, as shown in Fig. 2. The gear wheel next to the next higher digit is rotated clockwise by three teeth, while that is the furthest left-hand gear of the currently used gears is rotated clockwise by one tooth.

If the number 37 is keyed into the keyboard and the actuation key pressed down to subtract, as already described, the first part of the sequence results in a rotation the counter gear of the lowest digit by seven teeth and the adjacent gear of the higher order by three teeth, in both cases counterclockwise.

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At the. At the end of the first part of the work sequence, the counter is at 105, and a negative transfer (borrowing) is stored in the first transfer segment. During the remaining part of the work sequence, the negative transfer (borrowing) is transferred from the first transfer segment to the second gear of the counter, with the result that a further negative transfer (borrowing) is required. Since the springs 9 act on the transfer segments 8 in a clockwise direction at this time, this negative transfer (borrowing) is transferred to the third gear of the counter, the result 95 being obtained.

lie gears of the counter stay with the ^'u: bertragsegmenten 8 engaged until the Eückkehrtewegung the arithmetic sectors completed, is returned at which time the Zählwerkschlitten 70 again to engage the gears of the counter in the arithmetic sectors.

it can be seen from the above numerical examples that the case both with the addition and with the subtraction can, in which positive or negative carry through continue through the entire counter, e.g. if a 1 is added to the number 9999. In the case of an addition, such Cases, only the lowest order counter gear is affected by the corresponding arithmetic sector; however would there is a gain for each gear wheel of the higher order, so the result would be louöO, due to the particular Arrangement of the springs 6, 7 and 9 can in this way a positive or negative transfer step by step from each stage to the next following are transferred.

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(4) The determination of the overall result

If the overall result is to be determined, then need no data can be entered in the pen frame carriage via the keyboard. The carriage is therefore according to Fig.l on the rightmost point, so that the approach 20a of the pin frame slide 20 rests on the lever 60, this after has been moved to the right. If the actuation key 26 is depressed to determine the overall result, the lever 60 pushed forward according to Fig.l, so that the end of the lever 60 engaging in the slot 80c of the cam element 80 (Fig. 5) the setting of this cam element 80 is not influenced. The corner element 80 is therefore on one of the furthest to the right to the left by one step. Here, the result fingers 5 grip the part 80d of the mock element 80, so that the Resuitatfinger 5 now between the Gears of the counter 4 are in engagement.

The swing arm 61 still rests against the cam surface 12b, which is twice the width of the other cam surfaces of the cam element 12. From this it can be seen that the movements caused by the counter slide 70 during the determination of the overall result are the same as those of a subtraction.

As with an addition or subtraction, pressing down the actuation button a circuit leading to the motor M. closed, with the machine executing a complete work sequence.

For example, if the result is 137 in the six machine stored, it means that in the counter the gear of the lowest order clockwise by seven teeth, the gear the next higher order by three teeth and the adjacent gear

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has been turned one tooth further. Under the action of Springs 14 therefore become the arithmetic sectors of the three lowest orders up-offset over a distance that 1, 3 and 7 teeth corresponds to before the transfer teeth 4a of the Counter wheels come into contact with the fingers 5, which are now in a locked position. Accordingly, the concerned Printing racks are raised over a corresponding distance and the overall result is printed out. There is no transfer tooth can wander past the zero position, no carry takes place in the carry memory segments 8. Are during the return movement the gears of the counter disengaged from the teeth Ib of the arithmetic sectors and into the carry segments 8a is indented, the content of the counter is not changed, so that it has now been reset to zero. As During the subtraction, at the end of the work sequence, the Noekenfläche 12b has the gears of the counter in the teeth Ib of the arithmetic Sectors indented again.

(5) Determination of an interim result

The processes involved in determining an intermediate result are largely the same as those involved in determining the overall result. When determining the intermediate result, the swing arm 61 rests against the cam guide track 12a. The other cam elements remain in the setting for the overall result with the exception of the cam element 80, which is the furthest to the right position is moved. The cam guide track 12a consists of a circle. The counter slide 70 changes its accordingly Position not, so that the counter 4 meshes with the teeth Ib of the arithmetic sectors during the entire working sequence remain. It follows that during the first part of the

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Work sequence the result stored in the counter is read and printed out in exactly the same way as described above, whereby the content of the counter is deleted. However, since the counter with the teeth Ib of the arithmetic sectors is constant remains engaged, exactly the same read-off numbers are entered in the counter on the return movement » It follows from this that the counter is not effectively cleared when an intermediate result is determined.

(6) The multiplication

In the introduction to the description it was already mentioned that the keyboard is equipped with a repeat key ^ 3 is · by using this repeat button kpnnea products «The mode of action of this repeat key is described in the patent application already mentioned, which is still pending No. S 108 028 described The repeat key works after the Depressing the shaft 37 by means of a cam surface (FIGS. 1 and 3), the shaft 37 being shifted backwards and a pole member is prevented from engaging the carriage return cam 39, as is normally the case * If the follower is disengaged in this way, the slide will not become active after data has been entered or after an addition returned or deleted · This repeat key can therefore be used together with the actuation key to carry out multiplications used «The following procedure is used:

Assume that 617 is to be multiplied by 37 * At the beginning, the number 617 is keyed into the keyboard and thus entered in the pen frame «The repetition st as te 4-3 is pressed down and held down while pressing«

fo * ti4 / om **

ORIGINAL INSPECTED

DIPL.-INO- I) IETEK JANDER DR.-INiJ. MANFRED BDNINQ

PATENT Attorneys 1 5 ^ '3 3 A R

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key in the direction of addition during a seven work sequence is held depressed for a full time. Since the slide is not returned or deleted, the number becomes 617 added seven times. At the end of this arithmetic operation, the slide is moved by one column by entering a lull on the keyboard advanced to the left. The repeat button will still be is held depressed for a two-sequence time while the operation key is depressed in the adding direction. After that, the repeat button released, and the control button is depressed again and held down for two more sequences. In the first additional work sequence, the number becomes 6170 added while the pen carriage is being deleted. The final work sequence gives the overall result, that actually consists of the product, namely 22829.

summary

Although the different lüockenorofile in the drawings are not shown in detail, it is assumed, however, that experts know their design from the time sequence diagram in Fig.24 can easily be deduced. In the Pig. 24 are the various movements shown in graphic form, which are carried out and described in detail.

although an arithmetic unit for performing editions and Subtractions shown and described in a special embodiment can be indented without deviating from the idea of the invention various changes are made. Although a special arrangement has been described e.g. for the carry-over memory segments, so can of course on these elements as well as on others

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Changes were also made to elements of the marriage machine will. It should also be noted that the machine according to the invention has been designed in particular so that it are composed almost entirely of molded plastic parts can; however, it is not intended to apply the invention to the use of plastics or any particular material restrict. The invention itself is therefore only supported by the enclosed Claims delimited.

DJ: AK: EP

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1098U / 01 33

Claims (1)

Claims 1) Arithmetic unit with a pen frame slide for storing of data inputs, with a counter, with a number of racks for transferring data from the pen frame slide into the counter and for transferring data from the counter, with a carry storage device, with a data output device and with a drive device, characterized by a first leaf spring member (I ** -) in the form of a comb for Actuate the said data transmission racks (1) after a predetermined program, by a second leaf spring member (9) in the form of a comb for operating said carry storage device (8) according to a predetermined program, and by a third and a fourth leaf spring element (6 and 7) in the form of a comb for determining the data transfers and for transferring the transfers to the transfer storage device Z) arithmetic unit according to claim 1, wherein the data output device has a number of print hammers, characterized by a fifth leaf spring member (7e) in the form of a comb for operating said print hammers (3) 3) arithmetic unit according to claim 1 and 2, characterized in that the first, the second and the third leaf spring member is made in one piece in the form of a comb », and that the fourth 1 0 9 8 U / 0 1 3 3 and fifth leaf spring member together in one piece as a separate one Combs are made so that each leaf spring link is equipped with a number of individual spring fingers « k) arithmetic unit according to claim 31, characterized in that said leaf spring members are made of a plastic » 5) arithmetic unit according to claim 1, wherein the counter is displaceable and either with the data transmission racks or with the transfer storage device is engaged, characterized in that that the displacement takes place in a straight line, and that the fourth leaf spring member (7) is close to the third leaf spring member (6) is arranged so that the movements of the third leaf spring member are transferred to the fourth leaf spring member » 6) arithmetic unit according to claim 5 _t wherein the counter has a number of gears, which are individually freely rotatably mounted at a distance next to each other on a shaft, characterized in that each gear is equipped with at least one special tooth (4a) whose face width is greater than is the thickness of the toothed wheel, and that the spring tongues forming the third spring element are arranged in the spaces between the toothed wheels and determine the passage of the named special tooth past a reference point « 7) arithmetic unit according to claim 5> characterized in that the spring tongues forming the fourth leaf spring member are provided with a locking tooth (7b) that the transfer storage device 1098U / 0133 1549146 is formed by a number of gear segments (8) which are individually rotatably mounted next to each other on a shaft and have cutouts (8d) into which said ratchet teeth from fourth leaf spring member are pushed in and a rotation prevent the gear segments " 8) arithmetic unit according to claim 7 »characterized by further cutouts (8b) on the transfer storage gear segments, which cutouts are the spring tongues of the second leaf spring member record so that individual carry storage gear segments can store or transmit carries if they are from the third and the fourth spring link are released 9) arithmetic unit according to claim 6, characterized by a Number of fingers (5) for blocking or allowing the passage of said particular tooth (4a) on the wheels of the counter past a reference point after a program, so that with a Blocking the content of the counter can be read » 10) arithmetic unit according to claim 2, characterized in that said print hammers of a cam element (17) at the same time and released from a number of locking spring tongues (18) individually, said tongues being attached to cam surfaces the said data transmission racks are withdrawn, whereby the printing of numbers without value is suppressed « 11) 1098 U / 0133 1549148 11) arithmetic unit according to claim 5 »characterized in that the counter and the third leaf spring member are arranged in a carriage (70) which is on rails (72) on the machine frame is mounted and can be moved in a straight line by a cam element (12), so that transfers for the addition and the Subtraction can be stored and transferred. 12) arithmetic unit according to claim 6 and 11, characterized in that that the distance of the displacement is dimensioned so that the gears mesh with the carry-over storage device, before they become detached from the data transmission racks and vice versa, so there is no special lock for the counter needs to be provided " ORIGINAL INSPECTED 1 098 U / n 1 33 Blank page